Products > Test Equipment

REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol

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EV:
I tested this jitter with normal sweep. No change when triggered from CH2, jitter is still about 2 ns. When triggered from CH1 (Trig out signal itself), there is no trace with normal sweep. Jitter with auto sweep is about 1.2 ns.

EV:

--- Quote from: Teneyes on May 02, 2013, 07:03:38 am ---  I can  see that If Trigger out is connected to Ch 1, and in Normal trigger there would NOT be a trace, But what if you pressed the "Force" button to get the feedback going??

--- End quote ---

Pressing the force button when using normal sweep gives one trace but no jitter.

EV:

--- Quote from: John South on April 15, 2013, 05:55:25 am ---Hi All - Rigol are looking at another firmware release in about 2 weeks. This will fix the measurement ,and hopefully other , bugs.

--- End quote ---

Any news about the fix yet?

marmad:

--- Quote from: EV on May 07, 2013, 06:38:37 pm ---Any news about the fix yet?
--- End quote ---

I know they're working on a new version - I did some testing and delivered a bug report (with software for showing transfer bug) to drieg to pass onto Rigol at the end of last month.

ve7xen:
After some experimenting last night I can confirm a few things about the bandwidth limit on these scopes.


* The lasered chip in the frontend is definitely a LMH6518 PGA (or pin-compatible clone)
* It is the only analog bandwidth limit in the scope, and is used both for the 20MHz filter and 100MHz limiting
* DS2072 and DS2102 are presumably identical except for the 2ns timebase, given the tested -3dB response of the DS2072 and the fact that only the 100MHz PGA filter is engaged for bandwidth limiting
* -3dB bandwidth of the frontend is somewhere around 300MHz, so the 200MHz filter is likely used in the DS2202
This suggests to me that a software upgrade is definitely feasible for Rigol to offer. I'd expect to see one coming.

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